Skinny drinking – how to cut cals on a bender

I like to drink

Bacardi + coconut water

OR

Bacardi + hydralyte (I love watermelon and guava) + soda water / regular water

I find that when I’m drinking for long periods of time it still makes me dehydrated etc
But I would feel awful now I’m nearing 30 if I continued to drink wine/ champagne through a bender

What’s everyone else’s drink of choice on a bender